GB1484342A - Coagulation of rubber latex - Google Patents

Coagulation of rubber latex

Info

Publication number
GB1484342A
GB1484342A GB38321/74A GB3832174A GB1484342A GB 1484342 A GB1484342 A GB 1484342A GB 38321/74 A GB38321/74 A GB 38321/74A GB 3832174 A GB3832174 A GB 3832174A GB 1484342 A GB1484342 A GB 1484342A
Authority
GB
United Kingdom
Prior art keywords
latex
rubber
coagulum
natural rubber
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB38321/74A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RUBBER RES INST OF MALAYSIA
Original Assignee
RUBBER RES INST OF MALAYSIA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RUBBER RES INST OF MALAYSIA filed Critical RUBBER RES INST OF MALAYSIA
Priority to GB38321/74A priority Critical patent/GB1484342A/en
Priority to IN1565/CAL/1975A priority patent/IN144217B/en
Priority to BR7505595*A priority patent/BR7505595A/en
Priority to OA55600A priority patent/OA05099A/en
Publication of GB1484342A publication Critical patent/GB1484342A/en
Priority to MY1978213A priority patent/MY7800213A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C1/00—Treatment of rubber latex
    • C08C1/14—Coagulation

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

1484342 Coagulating rubber latex RUBBER RESEARCH INSTITUTE OF MALAYSIA BOARD OF 29 Aug 1975 [2 Sept 1974] 38321/74 Heading C3C [Also in Division B5] Raw solid natural rubber in bulk form is produced by a method comprising the steps of: (1) passing a continuous stream of fresh or preserved natural rubber field latex through a heat exchanger in which the heating medium is maintained at a temperature of 100‹ to 300‹ C., so as to raise the temperature of the latex to from 60‹ to 110‹ C., whereby gelation of the rubber is caused to take place rapidly; (2) optionally, crumbling the coagulum; (3) drying the coagulum; and (4) pressing and palleting the coagulum to form raw solid natural rubber in bulk. A heat sensitizing agent or an enzyme, e.g. papain, may be added to the latex before gelling. The latex may be passed through pipes surrounded by a heat transfer fluid, or through cut-out sections of two metal plates, held together by mechanical means, which are heated by electrical heating elements and constitute the heating medium.
GB38321/74A 1974-09-02 1974-09-02 Coagulation of rubber latex Expired GB1484342A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB38321/74A GB1484342A (en) 1974-09-02 1974-09-02 Coagulation of rubber latex
IN1565/CAL/1975A IN144217B (en) 1974-09-02 1975-08-11
BR7505595*A BR7505595A (en) 1974-09-02 1975-09-01 PROCESS TO GEL LATEX FROM NATURAL RUBBER
OA55600A OA05099A (en) 1974-09-02 1975-09-02 Coagulation of latex rubber.
MY1978213A MY7800213A (en) 1974-09-02 1978-12-31 Coagulation of rubber latex

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB38321/74A GB1484342A (en) 1974-09-02 1974-09-02 Coagulation of rubber latex

Publications (1)

Publication Number Publication Date
GB1484342A true GB1484342A (en) 1977-09-01

Family

ID=10402710

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38321/74A Expired GB1484342A (en) 1974-09-02 1974-09-02 Coagulation of rubber latex

Country Status (5)

Country Link
BR (1) BR7505595A (en)
GB (1) GB1484342A (en)
IN (1) IN144217B (en)
MY (1) MY7800213A (en)
OA (1) OA05099A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1184148A2 (en) * 2000-08-29 2002-03-06 Linatex Rubber Products SDN BHD A process and apparatus for coagilating and drying latex

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1184148A2 (en) * 2000-08-29 2002-03-06 Linatex Rubber Products SDN BHD A process and apparatus for coagilating and drying latex
EP1184148A3 (en) * 2000-08-29 2003-08-13 Linatex Rubber Products SDN BHD A process and apparatus for coagilating and drying latex

Also Published As

Publication number Publication date
IN144217B (en) 1978-04-08
BR7505595A (en) 1976-08-03
MY7800213A (en) 1978-12-31
OA05099A (en) 1981-01-31

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19950828